Perles en lapis-lazuli, forme carré Étoile - Quartz fumé

- Quartz fumé

Gemological information on smoky quartz:

Zambia Amethyst can be confused with: - Glass - Synthetic quartz - Cracked quartz - Irradiated synthetic quartz - Irradiated synthetic ametrine - Purple scapolite - Cordierite - Fluorite - Kunzite - Spinel - Doublet email - Garnet / glass doublet Treatments that exist to modify amethysts: - Colorant

Possible color: Light green to dark green with zoning

terracotta color

Perles en lapis-lazuli, forme carré Étoile - Quartz fuméLapis lazuli beads. Color: Ultramarine blue, white veins (calcite), pyrite inclusions, black traces Size: 10 x 10mm Shape: Flat square Country of origin: Afghanistan Number of pearls per row: 30 Gemological information about lapis lazuli: Possible color: Ultramarine blue, white veins (calcite), pyrite inclusions, black traces Density: between 2. 37 and 2. 95 Hardness: 5. 5 Crystal system: Cubic Breakage: Irregular Cleavage: Perfect Polariscope: Opaque